#include <Servo.h>

// Define servos
Servo horizontalServo;
Servo verticalServo;

// Define pins for LDR modules
const int LDR1 = A0; // LDR Module 1 (Left/Right)
const int LDR2 = A1; // LDR Module 2 (Up/Down)

// Servo pins
const int horizontalPin = 9; // Horizontal Servo
const int verticalPin = 10;  // Vertical Servo

// Servo positions
int horizontalPos = 90; // Initial horizontal position (centered)
int verticalPos = 90;   // Initial vertical position (centered)

// Sensitivity adjustment for smooth tracking
const int tolerance = 10;

void setup() {
  // Attach servos
  horizontalServo.attach(horizontalPin);
  verticalServo.attach(verticalPin);

  // Move servos to initial position
  horizontalServo.write(horizontalPos);
  verticalServo.write(verticalPos);

  // Start serial communication for debugging
  Serial.begin(9600);
}

void loop() {
  // Read light intensity from LDR modules
  int lightLDR1 = analogRead(LDR1); // Left/Right LDR
  int lightLDR2 = analogRead(LDR2); // Up/Down LDR

  // Debugging: Print light values to Serial Monitor
  Serial.print("LDR1: ");
  Serial.print(lightLDR1);
  Serial.print(" | LDR2: ");
  Serial.println(lightLDR2);

  // Calculate the difference between light intensities
  int lightDifference = lightLDR1 - lightLDR2;

  // Adjust horizontal servo position
  if (abs(lightDifference) > tolerance) {
    horizontalPos = map(lightDifference, -1023, 1023, 0, 180); // Map LDR difference to 0-180 degrees
    horizontalPos = constrain(horizontalPos, 0, 180);          // Ensure within servo range
    horizontalServo.write(horizontalPos);
  }

  // Optional: Add vertical movement for dual-axis tracking
  /*
  // Adjust vertical servo position
  if (abs(lightDifference) > tolerance) {
    verticalPos = map(lightDifference, -1023, 1023, 0, 180); // Map LDR difference to 0-180 degrees
    verticalPos = constrain(verticalPos, 0, 180);            // Ensure within servo range
    verticalServo.write(verticalPos);
  }
  */

  // Add a short delay for stability
  delay(50);
}